From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42E93C55189 for ; Wed, 22 Apr 2020 11:30:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1FE752082E for ; Wed, 22 Apr 2020 11:30:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="RFaOM1FC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728065AbgDVLaV (ORCPT ); Wed, 22 Apr 2020 07:30:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727010AbgDVL3k (ORCPT ); Wed, 22 Apr 2020 07:29:40 -0400 Received: from merlin.infradead.org (unknown [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44A27C03C1A9 for ; Wed, 22 Apr 2020 04:29:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-Id:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=oUbXjfV1dlNCWV/ZlTMhYxqUYOa2PzHrzpjIIU6gtnE=; b=RFaOM1FCNEe25RWL6WT8jRMSiT r13qsJcGA21NRlLiL3fSdq5YGnk5KYir4QMDx+vB0YowuZCg9IWF9PCR5RJATDzhray2TrUn1OlTB wNaACKiMCvchBaf8f/k4ByrwGBaRA3gBwwnDG51lGIMknw/O499FqL9znKJBBEitT58nYTJ58xMyG EvggQc/2QzmflphJZNMx/KUrlpxM8Vq7tykufz437931uz+qsp3tlcTmgw4GlqASayWwfTptpBLWo W0TqQ3dDvhMA6blRGeRjuOf7O2yEnOA5VkQXBVFYeX0TcRXc5/E1XPTOhuFGfnBJD89+IFyyluHpX ZS+a5VOg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRDYw-0006qp-SB; Wed, 22 Apr 2020 11:29:07 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 4A4F430796D; Wed, 22 Apr 2020 13:29:03 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id E120522B95898; Wed, 22 Apr 2020 13:29:02 +0200 (CEST) Message-Id: <20200422112831.928975262@infradead.org> User-Agent: quilt/0.65 Date: Wed, 22 Apr 2020 13:27:31 +0200 From: Peter Zijlstra To: mingo@kernel.org, linux-kernel@vger.kernel.org Cc: tglx@linutronix.de, rostedt@goodmis.org, qais.yousef@arm.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, peterz@infradead.org, daniel.lezcano@linaro.org, rafael.j.wysocki@intel.com Subject: [PATCH 12/23] sched,powercap: Convert to sched_set_fifo*() References: <20200422112719.826676174@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Because SCHED_FIFO is a broken scheduler model (see previous patches) take away the priority field, the kernel can't possibly make an informed decision. Effectively no change. Cc: daniel.lezcano@linaro.org Cc: rafael.j.wysocki@intel.com Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Ingo Molnar --- drivers/powercap/idle_inject.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/drivers/powercap/idle_inject.c +++ b/drivers/powercap/idle_inject.c @@ -255,9 +255,7 @@ void idle_inject_stop(struct idle_inject */ static void idle_inject_setup(unsigned int cpu) { - struct sched_param param = { .sched_priority = MAX_USER_RT_PRIO / 2 }; - - sched_setscheduler(current, SCHED_FIFO, ¶m); + sched_set_fifo(current); } /**